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Proceedings Paper

Test measurements and calibration problems of a direction-finding system based on a five-channel DOA processor
Author(s): Laszlo Jakab; Attila Barocsi; Peter I. Richter; Istvan Szonyi; T. Rath
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Paper Abstract

In this paper we describe and investigate an acoustooptic system capable for detecting and simultaneously determining both the frequencies and directions of several RF sources with short transmission time. Test measurements of the system have been carried out both in laboratory and real environment. Correction of aberrations of the optical system, correction of the frequency- phase difference characteristics of the antenna array, digital filtering of the output intensity distribution, spurious signal suppression, distinguishing CW and hopping signals; and improving the hopping signal resolution using histograms have been demonstrated. High angular resolution of 1 - 2 degree(s) and frequency accuracy of < 100 kHz for both CW and hopping signals in a relatively broad frequency range have been achieved.

Paper Details

Date Published: 29 June 1994
PDF: 7 pages
Proc. SPIE 2240, Advances in Optical Information Processing VI, (29 June 1994);
Show Author Affiliations
Laszlo Jakab, Technical Univ. of Budapest (Hungary)
Attila Barocsi, Technical Univ. of Budapest (Hungary)
Peter I. Richter, Technical Univ. of Budapest (Hungary)
Istvan Szonyi, Technical Univ. of Budapest (Hungary)
T. Rath, Technical Univ. of Budapest (Hungary)

Published in SPIE Proceedings Vol. 2240:
Advances in Optical Information Processing VI
Dennis R. Pape, Editor(s)

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